The director of Nigeria’s powerful intelligence agency has been suspended on orders of the president, after a massive stash of cash totaling $43 million was found in an apartment in Lagos. The money was discovered by investigators working for the Nigerian Economic and Financial Crimes Commission (EFCC). Based in Abuja, the EFCC is a high-profile body that was created in 2003, in response to accusations by the international community that Nigeria is used as a major base for global money-laundering schemes.

According to media reports, the money was found in a vacant apartment located in Ikoyi, arguably the most affluent neighborhood of the Nigerian capital and one of the wealthiest urban areas in Africa. The cash had been wrapped in transparent plastic sheets and hidden inside several metallic filing cabinets, as well as concealed behind a fake partition in a wooden wardrobe. According to a statement issued by the Nigerian government, the apartment was searched following tip-offs by local residents. The latter allegedly reported that a mysterious woman was seen entering or leaving the apartment with suspicious-looking bags at all hours of the day or night. Some residents told EFCC investigators that the woman may have been a man in disguise.

Government officials in Lagos said on Wednesday that the apartment belongs to the National Intelligence Agency, Nigeria’s primary intelligence organization. An investigation has therefore been launched into how the cash was accumulated in the apartment, and whether it had been authorized by intelligence officials or other government executives. In the meantime, Nigerian President Muhammadu Buhari ordered the immediate suspension of Ambassador Ayo Oke, who has been serving as director of the National Intelligence Agency. The ambassador is believed to be under house arrest and is not permitted to resume his professional duties until after the investigation has been completed. President Buhari has asked to be given the results of the investigation in two weeks.